Site Reliability Engineer, Senior

Webellian is a Digital Transformation and IT consulting company serving sectors such as insurance, banking, healthcare, retail, and manufacturing. The company focuses on leveraging cutting-edge and disruptive technologies and works with clients across industries to accelerate and realize their vision and strategy.

• 5+ years professional experience in site reliability engineering, DevOps, or platform engineering.
• Strong expertise in Kubernetes cluster operations, networking, storage, autoscaling, and troubleshooting.
• Solid Infrastructure as Code experience using Terraform; knowledge of Bicep or ARM templates is a plus.
• Production experience with Azure cloud services including AKS, ACR, Key Vault, Azure Monitor, Application Insights, Virtual Networks, and Private Endpoints.
• Proficiency with observability tools such as Prometheus, Grafana, centralized logging, alerting, and distributed tracing.
• Knowledge of SLO/SLI methodology, error budgets, reliability target setting, and capacity planning.
• Structured incident management experience including on-call ownership and blameless post-incident reviews.
• Scripting skills in Python or bash for automation and tooling.
• Strong CI/CD experience with GitHub Actions and ArgoCD or equivalent GitOps tooling.

Nice to have:

• Kubernetes certifications (CKA or CKAD).
• Experience supporting AI or ML workloads such as GPU scheduling and model serving.
• Exposure to chaos engineering and fault injection testing.
• FinOps experience including reserved capacity planning and cost attribution.
• Experience with service meshes (Istio, Linkerd) for traffic and reliability management.
• Experience in regulated industries with focus on auditability and secure operations.

• Define, instrument, and maintain SLOs and SLIs for platform components; manage error budget tracking and produce reliability reports.
• Serve on on-call rotation as infrastructure escalation tier and lead incident response; chair blameless post-incident reviews.
• Implement and operate Kubernetes infrastructure (AKS), including cluster lifecycle, networking, resource quotas, and autoscaling.
• Develop Infrastructure as Code (Terraform) to manage Azure resources with auditability and rollback capability.
• Build and maintain observability infrastructure: Prometheus, Grafana, Azure Monitor, Application Insights; manage alerting, dashboards, and tracing.
• Perform capacity planning and cost-aware resource management including tuning pod autoscalers.
• Automate repetitive operational tasks through scripting and tooling to reduce toil.
• Maintain platform reliability procedures such as rolling upgrades, backup and recovery testing, disaster recovery, and change coordination.
• Contribute to CI/CD pipelines and GitOps tooling (GitHub Actions, ArgoCD) focusing on reliability and deployment safety.
• Collaborate with Run & Change and Security Teams on incident SLAs, operational procedures, security hardening, and vulnerability remediation.